Bamboo and Water Vines

Both bamboo and water vines hold liquid within them that you can drink, and the image above shows two ways to do so(by either cutting and pouring it into your mouth, or cutting it and bending it over a container of some sort to catch liquid as it falls).

Be sure not to let your lips touch water vines, as the outer surface of the vine can cause irritation; instead, hold it above your head and pour it in your mouth. Also, do not mix water vines up with poisonous look-a-likes. Poisonous vines have a sticky and milky liquid inside, while the liquid in safe vines is clear.

Image found on google from this link.